Machine for making music-rolls



E. W. MYERS.

MACHINE FOR MAKING MUSIC ROLLS.

APPLICATION FILED MAY 2o. 192s.

1,366,017." Pandm.' 18,1921.

citizen of the United States, and

- UNITED sTArgs iAIENT OFFICE.y

EDGAR w. MYERS, on Los aNGEnEs,VcALi-Foimia, .assIGNoR 'rOrILMUsIo COMPANY, A CORPORATION `OF OALIFonNIA. y

y `ilrliiiiaINiaron MAKING Music-ROLLS.

y Application inea Mayen,"`

To all rwhom t may concern.' y Be itknown thatl, EDGAR W. MYnns, a resident of Los Angeles, in the State of California, have inventeda certain new and usefullm )rovement in Machines for MakingMusicolls, and do hereby declare that the f ollowing is a full, clear, and exact description thereof.

My invention relates to machines for perforating sheet material, `and in particular to machines for making master sheets for the reproduction of perforated sheet music for piano playing and like machines, and generally stated my object is to provide a machine foi-this purpose of high efficiency and accuracy in the production of the perforations corresponding to the notes to be rendered, and which, while capable of accurate or close adjustment, will be simple, not apt to get out of order and lasting, and for the attainment of my object and others, which will be evident to those skilled inthe art when the structure embodying my invention is understood, my said invention consists in the mechanism consti-noted substantially hereinafter specified and claimed. y

In the accompanying drawings-- l Figure 1 is a side elevation of a machine embodyingr my invention `with parts in vertical section; i

Fig. 2 is a detail top plan view.

As a brief preliminary description of the machine shown in the drawings forillustrating an embodiment of my invention, such machine comprehends a gangor row of side by side punches, a constantly reciprocating device for each punch and means for selectively placing the punches in operative connection with the reciprocating devices aceording to the notes to be mechanically re-` produced on the player instrument, such notes and the time value thereof being those rendered initially on the piano, or otheryinstrument, the blank paper to form the inas-` ter sheet being, of course, fed past the .row or gang of punches. The speed of reciproca tion of the punches, as is common in this art, is such that an openinghor slot of a length corresponding to the time value of the note, will result from the rapid reciprocation of the punches, a succession Of reciprocations resulting in a continuous s lot Taking up now the detailed description of the machine shown in the drawings, it

Specification ofiLetters Patent.`

Vend plates is a ma plates, a `means of ap revolve uit.

cach "end pla that particular piano key is again depressed,

enough -to clear the punch projection and Patented Jan. `1 191s. serial No. gaarne will be found to comprisea frameconveiiiently made of east iron having two end plates ll). Jouinaled in bearings in said in driving shaft ll havbeyond one the `end pulley l2 which fis a convenient plying power to said shaft to `ildjacentto the Outer side of te 10,'t`he driving shaft has an eccentric 13 upon vwhich is placed a pitman, or link lll; that extends horizontally and is pivotally connected to a horizontal bolt or shaft l5,`hung or suspended by a link 16 at each end, from the side frames l0, said shaft l5 being thus free to oscillate horizontally by the action of the eccentrics on the pitman. Pivotally mounted on the the shaft l5 is a series of levers or fingers 17, each of which, at one end, is connected by a wirelS to the pianokey action, and at .its opposite end has a vertical notch 19 in its upper` side that provides two spaced shoulders, the forward one of which is higher than the other, and by the upward movement of the notch, it is moved over the downturned end or projection 2O of a punch 2l that is slidable horizontally in a guide hole 22 in a cross bar 23 secured, as by screws, to the frame plates, and when the notch passes over the punch end, the punch 85 partakes of the horizontal reciprocations of i the lever or finger 17, being engaged lirst by "one notch shoulder and then by the other shoulder. As soon as the piano key is released, the finger connected therewith drops, and, preferably, it is acted on by a spring device 24 to assure its dropping to carry that one of the notch shoulders which moves the punch forward, low enough to clear the punch projection so that, until ing on `one end,

the finger 17 will reciprocate idly. However, the` notch shoulder that serves to retract the punch, is prevented dropping far thereby it is made certain that the punch will always be retracted. It is so prevented by a ledge 25 that projects from the punch guide bar below the end of the finger 17. The spring device 24 shown, is in the form 105 of' a spring pressed plunger mounted in a socket in a cross bar 26 above the series of iingersl.

Alining with each punch is a die hole 27 in a die bar 270 secured to the punch 110 guide bar, and spaced from the latter a sufficient distance to provide a space for the passage o'l the sheet of paper I), coming fromV a source of supply and'passing on to a take-up roll 28 mounted to turn in sultable bearings en the frame. A

The takesup roll 28 has on one end a kratehet'yvheel 29 engaged by a feeding paWl l. In a machine for perforating sheet materialythe combination of a plurality of V'independent reciproeable punches, a series ofY fingers, a shaft on Which they are pivoted, means for reciprocating said shaft, and

, ineansto rock the fingers to engage and disengage the lingers and respective punches, each linger having a notch With punch-engaging shoulders in different planes, which alternately engage the associated punch.

2. In a machine ior perforating sheet material, the combination of a plurality of independent reciprocable punches having each a projection, a guide bar for the same, a dierbar spaced apart from the guide bar to provide a sheet passage, a series of lingers having each spaced shoulders to en gage the projections on the respective punches, a shaft on which said lingers are pivoted, means to rock the lingers on the shaft and means to reciprocate said shaft.

In testimony that I claim the foregoing 1 I have hereunto set my hand.

EDGAR W. MYER S. 

